TW201737573A - High frequency electrical connector - Google Patents

Abstract

A high frequency electrical connector is provided. The high frequency electrical connector comprises an insulated housing forming a plurality of first contact slots and a plurality of second contact slots along an arrangement direction within the insulated housing. A plurality of first type conductive contact terminals inserted to the first contact slots correspondingly and a plurality of second type conductive contact terminals inserted to the second contact slots correspondingly. When the first free end portions of the first type conductive contact terminals electrically contact the corresponding terminals of the opposite electrical connector for transmitting high frequency signals, the high frequency electrical connector is capable of advantageously reducing the signal decay of the high frequency signal.

Description

High frequency electrical connector

This invention relates to an electrical connector, and more particularly to a high frequency electrical connector.

With the increasing demand for miniaturization of various data storage devices (such as hard disks) and speeding up data transmission, its proprietary high-frequency signal transmission electrical connectors such as Serial Advanced Technology Attachment (SATA) Types of electrical connectors also tend to be thinner, lighter, shorter, and need to accommodate a greater number of conductive terminals for different applications. In the case where the space inside the electrical connector is very limited, the arrangement density of the accommodating conductive terminals is greatly challenged because it is located between every two conductive terminals in the electrical connector. The arrangement pitch (ie Pitch) is also smaller, and at the same time limited by the standard spacing of the specific connector; due to the above specifications, it is easy to make the impedance value of the conductive terminal fluctuate too much, resulting in the male connector and the female connector The problem of impedance matching is such that the high frequency signal between the male and female electrical connectors cannot be transmitted correctly.

In addition, when the high-frequency signal passes through the conductive terminal, the crosstalk interference between the adjacent conductive terminals is likely to occur, thereby affecting the stability of the high-frequency signal transmission. Although in some prior art, the electrical connector additionally includes a conductive sheet or a housing to electrically connect the grounding path of the electrical connector, and the conductive sheet or the housing is prone to crosstalk problem. The conductive terminals absorb the electric field or magnetic field formed by the high frequency signal around the conductive terminals, thereby reducing crosstalk interference. However, the addition of a conductive sheet or housing will incur an additional manufacturing cost. Therefore, it is necessary to develop a new type of electrical connector to solve the above problems.

An object of the present invention is to provide a high frequency electrical connector, which is characterized in that the differential impedance value interval of the conductive terminal is smaller than a reference differential impedance value interval to improve the impedance matching of the high frequency electrical connector and avoid the conductive terminal. A crosstalk interference problem is formed between them.

In order to achieve the above object, in a first embodiment of the present invention, a high frequency electrical connector includes an insulative housing, wherein a plurality of first terminal slots are formed, and a plurality of second terminal slots are arranged in the one direction in the insulation. a plurality of first-type conductive terminals respectively embedded in the first terminal slots of the insulating housing, each first-type conductive terminal comprising: a first soldering portion for extending to the insulating The first abutting portion is connected to the first soldering portion for abutting against the sidewall of the insulating housing to fix the first terminal of the first type of conductive terminal corresponding to the insulating housing a first elastic arm portion extending from the first abutting portion toward a plugging direction of the electrical connector by a predetermined distance; and the first contact portion being connected to the first elastic arm portion at an angle And forming a first free end portion at a time, the first free end portion forms a first width along the arrangement direction, and the first contact portion forms along a direction perpendicular to the arrangement direction and the insertion direction a first thickness, wherein the first thickness is greater than a first width; and a plurality of second type of conductive terminals respectively embedded in the second terminal slots of the insulative housing; wherein the first free ends of the first type of conductive terminals are electrically When the corresponding terminals of the pair of electrical connectors are contacted to transmit the high frequency signal, the amount of signal attenuation when the high frequency electrical connector transmits the high frequency signal is reduced.

In one embodiment, the high frequency electrical connector is a non-metal shielded serial connection technology interface (SATA) type electrical connector, Serial Attached Small Computer System Interface (SAS) (eg, Any of three generations of SAS, earlier or newer generation SAS) type electrical connectors and combinations thereof.

In one embodiment, the differential impedance values of the first type of conductive terminals are less than or equal to a reference differential impedance value specified by a standard specification of SAS-3 or higher to reduce the amount of signal attenuation of the high frequency signal.

In one embodiment, a first edge distance is formed between the sides of each two adjacent first type of conductive terminals, and a second is formed between the sides of each two adjacent second type of conductive terminals. An edge distance, wherein the second edge distance is greater than the first edge distance.

In an embodiment, each of the second type of conductive terminals includes: a second soldering portion extending to the outside of the insulating body; and a second abutting portion extending from the second soldering portion for abutting the first a side wall of the second type terminal slot for fixing the second type of conductive terminal in the corresponding terminal slot of the insulating housing; the second elastic arm portion is inserted from the second abutting portion toward the electrical connector Extending a predetermined distance in the pulling direction; and connecting the second contact portion to the second elastic arm portion at an angle and forming a second free end portion at a time, the second free end portion forming a second direction along the arrangement direction The second width and the second contact portion form a second thickness along a direction perpendicular to the arrangement direction and the insertion direction, wherein the second thickness is greater than the second width.

In an embodiment, the first type of conductive terminals and the second type of conductive terminals are blanking terminal structures.

In an embodiment, the second free ends of the second type of conductive terminals electrically contact the corresponding terminals of the docking electrical connector to transmit high frequency signals, and the second type of conductive ends The differential impedance value of the sub is less than or equal to the reference differential impedance value specified by a SATA standard specification.

In an embodiment, the reference differential impedance value is between 85 ohms and 115 ohms.

In one embodiment, the first type of conductive terminals comprise a plurality of first type of conductive terminals; a plurality of second type of conductive terminals, a transverse cross section of each of the first type of conductive terminals and each of the first type of conductive terminals The transverse cross-section of the first elastic arm portion of the second type of conductive terminal is staggered in the arrangement direction of the first terminal slot of the insulating housing, and the first type of conductive terminals and the first The first free ends of the second type of conductive terminals form a collinear or coplanar arrangement.

In an embodiment, the overlapping area between the first elastic arm portion of the two first-type conductive terminals and the first elastic arm portion of the second-type conductive terminal are smaller than the two And a surface area of the first elastic arm portion of the first type of conductive terminal and the first elastic arm portion of the second type of conductive terminal.

In one embodiment, a center line of a transverse cross section of the first elastic arm portion of each of the first type of conductive terminals forms a center line with a center line of a transverse cross section of the first elastic arm portion of each of the second type of conductive terminals. Offset distance.

In one embodiment, the high frequency electrical connector further includes a plurality of third type conductive terminals respectively embedded in the plurality of third terminal slots of the insulating housing, each third type conductive terminal having a third soldering a third elastic arm portion, a bent contact portion and a third free end portion, the length from the third welded portion to the third free end portion being greater than the first length from the first type of conductive terminal The length of the weld between the first free ends.

In a second embodiment of the present invention, a high frequency electrical connector includes an insulative housing, and a plurality of first terminal slots are formed, and a plurality of second terminal slots are arranged along a direction. The first type of conductive terminals are respectively embedded in the first terminal slots of the insulating housing, and each of the first type conductive terminals further includes a first elastic arm portion and a first contact portion, the first contact portion is connected to the first elastic arm portion at an angle and a first free end portion is formed at a last end, and each of the first type conductive terminals further includes: a plurality of first type a conductive terminal; and a plurality of second type of conductive terminals, the structure of which is different from the plurality of first type of conductive terminals, a transverse cross section of the first elastic arm portion of each of the first type of conductive terminals and each of the second type of conductive terminals The transverse cross-section of the first elastic arm portion is staggered in the arrangement direction of the first terminal slot of the insulating housing, and the first type of conductive terminals and the second type of conductive terminals The first free ends are formed in a collinear or coplanar arrangement; and a plurality of second type of conductive terminals are respectively embedded in the second terminal slots of the insulating housing.

In one embodiment, the high frequency electrical connector is a non-metal shielded SATA type electrical connector, a SAS-3 type electrical connector, and any combination thereof.

In one embodiment, a first edge distance is formed between the sides of each two adjacent first type of conductive terminals, and a second is formed between the sides of each two adjacent second type of conductive terminals. An edge distance, wherein the second edge distance is greater than the first edge distance.

In an embodiment, the first type of conductive terminals and the second type of conductive terminals are blanking terminal structures.

In an embodiment, each of the second type of conductive terminals further includes a second elastic arm portion and a second contact portion, the second contact portion is connected to the second elastic arm portion at an angle and formed at a short end. a second free end.

In an embodiment, the second free ends of the second type of conductive terminals electrically contact the corresponding terminals of the docking electrical connector to transmit high frequency signals, and the second type of conductive ends The differential impedance value of the sub is less than or equal to the reference differential impedance value specified by a SATA standard specification.

In an embodiment, the overlapping area between the first elastic arm portion of the two first-type conductive terminals and the first elastic arm portion of the second-type conductive terminal are smaller than the two And a surface area of the first elastic arm portion of the first type of conductive terminal and the first elastic arm portion of the second type of conductive terminal.

In one embodiment, a center line of a transverse cross section of the first elastic arm portion of each of the first type of conductive terminals forms a center line with a center line of a transverse cross section of the first elastic arm portion of each of the second type of conductive terminals. Offset distance.

In one embodiment, the high frequency electrical connector further includes a plurality of third type conductive terminals respectively embedded in the plurality of third terminal slots of the insulating housing, each third type conductive terminal having a third soldering a third elastic arm portion, a bent contact portion and a third free end portion, the length from the third welded portion to the third free end portion being greater than the first length from the first type of conductive terminal The length of the weld between the first free ends.

100‧‧‧Insulated housing

102‧‧‧First type conductive terminal

104‧‧‧Second type conductive terminal

106‧‧‧Type 3 conductive terminal

108‧‧‧Circuit board

110‧‧‧Electrical connector

112‧‧‧Corresponding terminal

114a‧‧‧First terminal slot

114b‧‧‧Second terminal slot

114c‧‧‧ third terminal slot

116a‧‧‧First Welding Department

116b‧‧‧Second welding department

116c‧‧‧ Third Welding Department

117‧‧‧Bending contact

118a‧‧‧First Abutment

118b‧‧‧second abutment

120a‧‧‧First spring arm

120b‧‧‧Second bounce arm

120c‧‧‧ Third arm

122a‧‧‧First contact

122b, 122b1‧‧‧second contact

124‧‧‧ side wall

126a‧‧‧First free end

126b‧‧‧Second free end

126c‧‧‧ third free end

202‧‧‧First type conductive terminal

202a‧‧‧First type of conductive terminals

202b‧‧‧Second type conductive terminals

204‧‧‧Second type conductive terminal

AA‧‧‧ surface area

AD‧‧‧Arranged direction

CR1, CR2, CR3, CR4‧‧‧ curves

DP‧‧‧ arrangement interval

ED1‧‧‧first edge distance

ED2‧‧‧ second edge distance

ID‧‧‧plug direction

LT1‧‧‧ first lower limit

LT2‧‧‧ second lower limit

OA‧‧‧ overlapping area

OD‧‧‧ offset distance

PD‧‧‧Predetermined distance

S1, S2, S3, S4‧‧‧ curves

SI31‧‧‧First differential impedance value interval

SI32‧‧‧Second differential impedance value interval

SI43‧‧‧ third differential impedance value interval

SI44‧‧‧ fourth differential impedance value interval

T1‧‧‧first thickness

T2‧‧‧second thickness

UT‧‧‧ upper limit

W1‧‧‧ first width

W2‧‧‧ second width

FIG. 1 is a perspective view showing a three-dimensional combination of a high frequency electrical connector according to a first embodiment of the present invention.

2 is a schematic exploded view of the high frequency electrical connector according to the first embodiment of the first embodiment of the present invention.

Fig. 3 is a cross-sectional view taken along line A-A' of Fig. 1 in the first embodiment of the present invention.

FIG. 4A is a perspective view showing the first type of conductive terminal in the first embodiment of the present invention.

FIG. 4B is a diagram showing two first type of conductive terminals arranged adjacent to each other according to the first embodiment of the present invention; Plane schematic.

FIG. 5A is a perspective view showing a second type of conductive terminal according to the first embodiment of the present invention.

FIG. 5B is a schematic plan view showing two adjacent second-type conductive terminals arranged in accordance with the first embodiment of the present invention.

6A-6C are schematic diagrams showing the waveforms of electrical characteristics of the conductive terminals in the first embodiment of the present invention.

FIG. 7 is a schematic perspective view showing the high-frequency electrical connector according to the second embodiment of the present invention.

FIG. 8 is a schematic view showing the explosion of the high frequency electrical connector according to the second embodiment of the present invention.

Figure 9 is a cross-sectional view taken along line B-B' of Figure 7 in accordance with a second embodiment of the present invention.

FIG. 10A is a schematic perspective view showing different first-type conductive terminals arranged adjacently according to the second embodiment of the present invention.

Fig. 10B is a cross-sectional view taken along line C-C' of Fig. 10A in the second embodiment of the present invention.

FIG. 10C is a schematic diagram showing the waveform of the electrical characteristics of the first type of conductive terminals in the second embodiment of the present invention.

11A is a perspective view showing a second type of conductive terminal according to a second embodiment of the present invention.

FIG. 11B is a schematic plan view showing two adjacent second-type conductive terminals arranged in accordance with the second embodiment of the present invention.

11C is a schematic view showing the waveform of the electrical characteristics of the second type of conductive terminals in the second embodiment of the present invention.

1 to 3, FIG. 1 is a perspective view showing a high-frequency electrical connector according to a first embodiment of the present invention; and FIG. 2 is a high-frequency electrical connection according to a first embodiment of the present invention. FIG. 3 is a cross-sectional view taken along line AA' of FIG. 1 according to the first embodiment of the present invention. The high frequency electrical connector includes an insulative housing 100, a plurality of first type conductive terminals 102, a plurality of second type conductive terminals 104, a plurality of third type conductive terminals 106, and a circuit board 108. In one embodiment, the high frequency electrical connector of the present invention is a non-metal shielded sequential high-level connection technology interface (SATA) type electrical connector, a serial small computer interface (SAS-3) type electrical connector, and Any of the combinations of electrical connectors. As shown in Fig. 1, it is a combination interface of a serial type high connection technology interface (SATA) type electrical connector and a serial small computer interface (SAS-3) type electrical connector. In FIG. 1, a high frequency electrical connector (e.g., a female connector) is coupled to another mating electrical connector (e.g., a male connector) 110 for transmission by a plurality of corresponding terminals 112 of the docking connector 110. High frequency signal.

As shown in FIG. 2 and FIG. 3, the insulative housing 100 defines a plurality of first terminal slots 114a and a plurality of second terminal slots 114b, and the first terminal slots 114a and the second terminal slots 114b. Arranged in the insulating housing 100 along one direction AD. A plurality of first-type conductive terminals 102 are respectively embedded in the first terminal slots 114a of the insulative housing 100. Each of the first-type conductive terminals 102 includes a first soldering portion 116a, a first abutting portion 118a, The first elastic arm portion 120a and the first contact portion 122a.

In FIGS. 2 and 3, the first solder portion 116a extends beyond the rear end of the insulative housing 100. In an embodiment, the first solder portion 116a uses, for example, a solder joint of a surface mount technology (SMT). A solder pad (not shown) electrically connected to the circuit board 108 at the rear end of the insulative housing 100. The first abutting portion 118 a is connected to the first soldering portion 116 a for abutting against the insulating housing 100 The inner side wall 124 is fixed to the first terminal slot 114a corresponding to the insulating housing 100. The first elastic arm portion 120a extends from the first abutting portion 118a toward a plugging direction ID of the electrical connector by a predetermined distance PD. The first contact portion 122a is connected to the first elastic arm portion 120a at an angle (for example, 90 degrees, not limited thereto, may be any angle) and forms a first free end portion 126a at a terminal end, the first free end The portion 126a forms a first width W1 along the arrangement direction AD (as shown in FIG. 4B) and the first contact portion 122a forms a first thickness T1 along a direction perpendicular to the arrangement direction AD and the insertion direction ID. The first thickness T1 is greater than the first width W1. When the first free end portion 126a of the first type of conductive terminals 102 of the present invention electrically contacts the corresponding terminal 112 of the pair of electrical connectors 110 to transmit a high frequency signal, the high frequency electrical connector is effectively reduced in transmitting The amount of signal attenuation at high frequency signals.

Referring to FIGS. 3, 4A, 4B, and 6A, FIG. 4A is a perspective view of the first type conductive terminal 102 according to the first embodiment of the present invention; FIG. 4B is a view showing two firsts according to the first embodiment of the present invention. FIG. 6A is a schematic plan view showing the electrical characteristics of the conductive terminals according to the first embodiment of the present invention. FIG. In the embodiment of FIGS. 4A and 4B, the first contact portion 122a of the first type conductive terminal 102 is perpendicular to the first elastic arm portion 120a, and the first free end portion 126a is electrically connected to the docking along the vertical direction. The corresponding terminal 112 of the connector 110, wherein the first contact portion 122a forms a first thickness T1 in the direction of the insertion and removal direction ID. Each of the two first-type conductive terminals 102 forms an array interval DP and the edges of each of the two first-type conductive terminals 102 are separated by a first edge distance ED1. The first-type conductive terminals 102 are arranged along the alignment direction AD. Arranged in equal heights, wherein the arrangement interval DP is greater than the first edge distance ED1.

As shown in Fig. 6A, the horizontal axis represents time (nanoseconds/PS), the vertical axis represents impedance values (ohms, Ohm), the curve S1 represents impedance curves of a conventional electrical connector, and the curve S2 represents The impedance curve of the inventive high frequency electrical connector, wherein SI1 is defined as a reference differential impedance value interval of the prior art, which represents a fluctuation range of a conventional impedance value, and SI2 is defined as the difference of the high frequency electrical connector of the present invention. a dynamic impedance value interval indicating a fluctuation range of the impedance value of the present invention. Since the differential impedance value interval is smaller than the reference differential impedance value interval, the fluctuation range of the impedance value of the differential impedance value interval is small, so the present invention The impedance matching of the first type of conductive terminals 102 of the high frequency electrical connector is preferred; it should be noted that, as in the embodiment shown in FIG. 6A, the impedance value of the differential impedance value interval is between 94 ohms and 112. Between ohms, the impedance threshold specified in the standard specification (for example, within 85 ohms to 115 ohms) improves the impedance matching of the high frequency electrical connector. In one embodiment, the differential impedance values of the first type of conductive terminals 102 are less than or equal to the reference differential impedance value specified by the standard specification of SAS-3 or higher, and the signal attenuation amount of the high frequency signal can be reduced. As described above, the high frequency electrical connector of the present invention forms a better impedance matching state between the high frequency electrical connector and the docking electrical connector 110 by adjusting the arrangement between the first type of conductive terminals 102, that is, After the high frequency signal from the docking electrical connector 110 is transmitted to an electronic device (not shown) through the high frequency electrical connector, the attenuation of the high frequency signal is less than a threshold value, so that the signal strength is in the process of transmission. It does not excessively wear out, and improves the transmission quality of the high-frequency signal of the high-frequency electrical connector.

Referring to FIGS. 2, 5A, 5B, and 6A, FIG. 5A is a perspective view of the second type conductive terminal 104 according to the first embodiment of the present invention; FIG. 5B is a diagram showing two adjacent sides according to the first embodiment of the present invention. A schematic plan view of the aligned second type of conductive terminals 104. A plurality of second type conductive terminals 104 are respectively embedded in the second terminal slots 114b of the insulative housing 100. Each of the second type conductive terminals 104 includes a second soldering portion 116b, a second abutting portion 118b, a second spring arm portion 120b, and a second contact portion 122b. The second soldering portion 116b is configured to extend outside the insulating body 100 for fixing The second type of conductive terminal 104 is in the second terminal slot 114b corresponding to the insulative housing 100. The second abutting portion 118b extends from the second soldering portion 116b for abutting against a sidewall (not shown) of the second terminal slot 114b to fix the second type conductive terminal 104 to the insulating housing 100. The second terminal slot 114b. The second elastic arm portion 120b extends from the second abutting portion 118b toward a plugging direction ID of the electrical connector by a predetermined distance (not shown). The second contact portion 122b is connected to the second elastic arm portion 120b at an angle (for example, 90 degrees, not limited thereto, may be any angle) and forms a second free end portion 126b at a time, the second free portion The end portion 126b forms a second width W2 along the alignment direction AD, and the second contact portion 122b forms a second thickness T2 along a direction perpendicular to the arrangement direction AD and the insertion direction ID, wherein the second thickness T2 is greater than the second width W2.

In the embodiment of FIGS. 5A and 5B, the second contact portion 122b of the second type conductive terminal 104 is perpendicular to the second elastic arm portion 120b, and the second free end portion 126b is electrically connected to the docking along the vertical direction. The corresponding terminal 112 of the connector 110, wherein the second contact portion 122b forms a second thickness T2 in the direction of the insertion and removal direction ID. Each of the two second-type conductive terminals 104 is formed with an interval DP and the edges of each of the two second-type conductive terminals 104 are separated by a second edge distance ED2. The second-type conductive terminals 104 are arranged along the alignment direction AD. Arranged in equal heights, wherein the arrangement interval DP is greater than the second edge distance ED2. When the second free end portion 126b of the second type of conductive terminals 104 electrically contacts the corresponding terminal of the mating electrical connector to transmit a high frequency signal, the differential impedance values of the second type of conductive terminals 104 are less than Or equal to the reference differential impedance value specified in the SATA standard specification.

As shown in FIGS. 4A, 4B, 5A, and 5B, a first edge distance ED1 is formed between the sides of each of the two adjacent first type conductive terminals 102, and each two adjacent second type conductive materials are formed. A second edge distance ED2 is formed between the sides of the terminal 104, wherein the second edge is larger than the ED2 The first edge is at a distance ED1. In one embodiment, the first type of conductive terminal 102 and the second type of conductive terminal 104 of the high frequency electrical connector of the present invention are a blanking terminal structure.

Referring to Figures 6B-6C, there are shown waveform diagrams of the electrical characteristics of the conductive terminals in accordance with the first embodiment of the present invention. As shown in Fig. 6B, the horizontal axis represents the frequency (Ghz), and the vertical axis represents the insertion loss value in decibel (dB), where the insertion loss value is equal to -1 dB, which is defined as the standard insertion loss. The value SS1, when the insertion loss value of the conductive terminal is greater than the standard insertion loss value SS1, indicates that the crosstalk interference is smaller, the signal quality is better; conversely, if the insertion loss value is smaller than the standard insertion loss value SS1, the string is represented. The greater the interference of the crosstalk, the worse the signal quality. As shown in FIG. 6B, the curve CR1 corresponding to the conductive terminal of the present invention can maintain the insertion loss value of the conductive terminal equal to or greater than the standard insertion loss value SS1 at 6.8 Ghz, but the corresponding conductive terminal corresponds to When the curve CR2 is 6.8 Ghz, the insertion loss value (about -1.5 dB) of the conductive terminal is smaller than the standard insertion loss value SS1, so that the electrical connector of the present invention can improve the crosstalk interference problem of the conventional electrical connector. As shown in Fig. 6C, the horizontal axis represents the frequency (Ghz), the vertical axis represents the return loss value, the unit is decibel (dB), and the return loss value equal to -12 dB is defined as the standard return loss value. When the return loss value of the conductive terminal is less than the standard return loss value SS2, the smaller the crosstalk interference, the better the signal quality; conversely, if the return loss value is greater than the standard return loss value SS2, it means crosstalk (crosstalk) The greater the interference, the worse the signal quality. As shown in Fig. 6C, the curve CR3 corresponding to the conductive terminal of the present invention can maintain the return loss value of the conductive terminal greater than the standard return loss value SS2 at 5.8 Ghz, but When the curve CR4 corresponding to the conventional conductive terminal is 5.8 Ghz, the return loss value (about -10 dB) of the conductive terminal is greater than the standard return loss value SS2, so according to the 6B-6C diagram, the electrical connector of the present invention can be Improve crosstalk interference problems with conventional electrical connectors.

Continuing to refer to FIG. 2, the high frequency electrical connector further includes a plurality of third type conductive terminals 106 respectively embedded in the plurality of third terminal slots 114c of the insulating housing, each of the third type conductive terminals 106 having The length of the third welded portion 116c, the third elastic arm portion 120c, the bent contact portion 117 and the third free end portion 126c from the third welded portion 116c to the third free end portion 126c is greater than the first The length of the type of conductive terminal 102 between the first solder portion 116c and the first free end portion 126c. In an embodiment, the arrangement interval DP of the third type of conductive terminals 106 is greater than the arrangement interval DP of the second type of conductive terminals 104, and the arrangement interval DP of the second type of conductive terminals 104 is greater than the first type of conductive terminals 102. The arrangement interval is DP.

7 to 9 and 10A, 10B, FIG. 7 is a schematic perspective view of a high frequency electrical connector according to a second embodiment of the present invention; and FIG. 8 is a view showing a high frequency power according to a second embodiment of the present invention. FIG. 9 is a cross-sectional view taken along line BB' of FIG. 7 in accordance with a second embodiment of the present invention. FIG. 10A is a perspective view showing different first-type conductive terminals 202 arranged adjacent to each other in the second embodiment of the present invention. Fig. 10B is a cross-sectional view taken along line C-C' of Fig. 10A in the second embodiment of the present invention. The high frequency electrical connector includes an insulative housing 100, a plurality of first type conductive terminals 202, a plurality of second type conductive terminals 104, a plurality of third type conductive terminals 106, and a circuit board 108. The high frequency electrical connector of the second embodiment of the present invention is similar to the high frequency electrical connector of the first embodiment, except that the structure of the plurality of first type conductive terminals 102 of the second embodiment is different from that of the first embodiment. The structure of a plurality of first type conductive terminals 202.

As shown in FIG. 8, 9, 10A, and 10B, the insulating housing 100 respectively forms a plurality of first terminal slots 114a and a plurality of second terminal slots 114b, the first terminal slots 114a and the second terminals. The slots 114b are arranged in the insulating housing 100 in a direction AD. plural The first type of conductive terminals 202 are respectively embedded in the first terminal slots 114a of the insulative housing 100, and each of the first type of conductive terminals 202 includes a first soldering portion 116a, a first abutting portion 118a, and a first A spring arm portion 120a and a first contact portion 122a extend beyond the rear end of the insulating body 100. In one embodiment, the first solder portion 116a is electrically connected to a solder pad (not shown) of the circuit board 108 at the rear end of the insulative housing 100, for example, using a solder joint of a surface mount technology (SMT). The first abutting portion 118a is connected to the first soldering portion 116a for abutting against the sidewall 124 of the insulative housing 100 to fix the first type of conductive terminal 202 corresponding to the insulating housing 100. One terminal slot 114a. The first contact portion 122a is connected to the first elastic arm portion 120a at an angle and forms a first free end portion 126a at the end.

As shown in Figures 8, 9, 10A, and 10B, each of the first type of conductive terminals 202 of the second embodiment of the present invention includes a plurality of first type of conductive terminals 202a and a plurality of second type of conductive terminals 202b. The structure of each of the second type of conductive terminals 202b is different from the structure of each of the first type of conductive terminals 202a, the transverse cross section of the first elastic arm portion 120a of each of the first type of conductive terminals 202a and each of the second type of conductive terminals 202b The transverse cross-section of the first elastic arm portion 120a is formed in the first terminal slot 114a of the insulative housing 100 along the alignment direction AD, and the first type of conductive terminals 202a and the second type are formed. The first free ends 126a of the conductive terminals 202b are formed in a collinear or coplanar arrangement such that the first type of conductive terminals 202a and the first free ends 126a of the second type of conductive terminals 202b are electrically contacted simultaneously. Corresponding to terminal 112. The overlapping area OA of each of the two first elastic arm portions 120a of the first type of conductive terminals 202a and the first elastic arm portions 120a of the second type of conductive terminals 202b are smaller than the two interlaced phases. Adjusting the surface area AA of the first elastic arm portion 120a of the first type of conductive terminal 202a and the first elastic arm portion 120a of the second type of conductive terminal 202b to adjust the first type of conductive terminals 202a And the second The capacitance and impedance between the conductive terminals 202b, for example, in the case of the same surface area AA, the smaller the overlap area OA, the smaller the capacitance, and the larger the surface area AA, for example, in the case of the same overlap area OA, The lower the impedance. An offset distance OD is formed between a center line of a transverse cross section of the first elastic arm portion of each of the first type of conductive terminals and a center line of a transverse cross section of the first elastic arm portion 120a of each of the second type of conductive terminals 202b. Where the offset distance OD is negatively correlated with the overlap area OA.

FIG. 10C is a schematic diagram showing the waveform of electrical characteristics of the first type conductive terminal 202 according to the second embodiment of the present invention. As shown in Fig. 10C, the horizontal axis represents time (nanoseconds/PS), the vertical axis represents impedance values (ohms, Ohm), and the curve S3 represents the impedance curve of the high-frequency electrical connector of the present invention, wherein the curve S3 is located differently. The continuous time interval corresponds to different impedance values, and each time interval includes a first time interval TD1 (eg, a female connector), an interaction time interval TDA (eg, a male and female connector), and a second time interval TD2 (for example, a male connector). In the first time interval TD1, SI31 is the first differential impedance value interval of the high-frequency electrical connector of the present invention, and the first differential impedance value interval SI31 is defined by the upper limit (UT) and the first lower limit (LT1). The SI32 is the second differential impedance value interval of the high-frequency electrical connector of the present invention, and the second differential impedance value interval SI32 is defined by the upper limit (UT) and the second lower limit (LT2). The first differential impedance value interval SI31, the upper limit (UT), the first lower limit (LT1), the second differential impedance value interval SI32, and the second lower limit (LT2) are all impedance thresholds specified in the standard specification (for example, 85) Ohmic to 115 ohms, but not limited thereto, such as a larger impedance value, such as 75 ohms to 125 ohms, so that the impedance matching of the first type of conductive terminals 202 of the high frequency electrical connector of the present invention is better, The amount of attenuation of the signal of the high frequency signal is reduced. As described above, the high frequency electrical connector of the present invention forms a better impedance matching state between the high frequency electrical connector and the docking electrical connector 110 by adjusting the arrangement between the first type of conductive terminals 202, such as 9, 10C picture In the embodiment, the first differential impedance value interval SI31, the upper limit (UT), the first lower limit (LT1), the second differential impedance value interval SI32, and the second are adjusted by adjusting the ratio of the surface area AA to the overlap area OA. The lower limit (LT2) is a critical value specified by the standard specification, so that the high frequency signal from the docking electrical connector 110 is transmitted to an electronic device (not shown) through the high frequency electrical connector, and the attenuation of the high frequency signal is less than A threshold value makes the signal strength not excessively depleted during transmission, which improves the transmission quality of the high-frequency signal of the high-frequency electrical connector.

Referring to FIGS. 7 and 11A to 11C, FIG. 11A is a perspective view showing a second type of conductive terminal 204 according to a second embodiment of the present invention; and FIG. 11B is a view showing two adjacent arrangements according to the second embodiment of the present invention. FIG. 11C is a schematic diagram showing the waveform of the electrical characteristics of the second type conductive terminal 204 according to the second embodiment of the present invention. A plurality of second type conductive terminals 204 are respectively embedded in the second terminal slots 114b of the insulative housing 100. The second type of conductive terminal 204 of the second embodiment is similar to the second type of conductive terminal 104 of the first embodiment, except that the second contact portion 122b1 of the plurality of second type conductive terminals 204 of the second embodiment is different from the second The second contact portion 122b of the plurality of second type conductive terminals 104 of an embodiment. The arc angle of the second contact portion 122b1 of the second type conductive terminal 204 is greater than the arc angle of the second contact portion 122b of the second type conductive terminal 104, so that the second contact portion 122b1 of the second type conductive terminal 204 is arranged along the line. The area of the direction AD is smaller than the area of the second contact portion 122b of the second type of conductive terminal 104.

FIG. 11C is a schematic diagram showing the waveform of the electrical characteristics of the second type conductive terminal 204 according to the second embodiment of the present invention. As shown in FIG. 11C, the horizontal axis represents time (nanoseconds/PS), the vertical axis represents impedance values (ohms, Ohm), and the curve S4 represents the impedance curve of the high-frequency electrical connector of the present invention, and SI4 is defined as the present invention. a differential impedance value interval of the high frequency electrical connector, wherein the curve S4 is not located The same continuous time interval corresponds to different impedance values, and each time interval includes a first time interval TD1 (for example, a female connector), an interaction time interval TDA (for example, a male and female connectors), and a second time interval. TD2 (for example, a male connector). In the first time interval TD1, SI43 is the third differential impedance value interval of the high-frequency electrical connector of the present invention, and the first differential impedance value interval SI43 is defined by the upper limit (UT) and the first lower limit (LT1). The SI44 is the fourth differential impedance value interval of the high-frequency electrical connector of the present invention, and the fourth differential impedance value interval SI44 is defined by the upper limit (UT) and the second lower limit (LT2), and the third differential The impedance value interval SI43, the upper limit (UT), the first lower limit (LT1), the fourth differential impedance value interval SI44, and the second lower limit (LT2) are all impedance thresholds specified in the standard specifications (for example, 85 ohms to 115 ohms). Within, but not limited to, for example, a larger impedance value, such as 75 ohms to 125 ohms, the impedance matching of the second type of conductive terminals 204 of the high frequency electrical connector of the present invention is preferred; in an embodiment The differential impedance value of the second type of conductive terminals 204 is less than or equal to the reference differential impedance value specified by the standard specification of SAS-3 or higher, and the signal attenuation amount of the high frequency signal can be reduced. As described above, the high frequency electrical connector of the present invention is made high by adjusting the arrangement between the second type of conductive terminals 204 (for example, the electrical contact position of the second contact portion 122b1 and/or the second free end portion 126b). A preferred impedance matching state is formed between the frequency electrical connector and the docking electrical connector 110, that is, after the high frequency signal from the docking electrical connector 110 is transmitted to an electronic device (not shown) through the high frequency electrical connector, The attenuation of the high-frequency signal is less than a critical value, so that the signal strength is not excessively lost during the transmission process, so as to improve the transmission quality of the high-frequency signal of the high-frequency electrical connector.

In summary, the frequency electrical connector of the present invention solves the differential impedance value interval of the conductive terminal less than the reference differential impedance value interval to improve the impedance matching of the high frequency electrical connector. And avoid the problem of crosstalk interference between the conductive terminals.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. The invention is intended to be limited to the scope of the invention, and the scope of the invention is defined by the scope of the appended claims. Prevail.

100‧‧‧Insulated housing

102‧‧‧First type conductive terminal

104‧‧‧Second type conductive terminal

106‧‧‧Type 3 conductive terminal

108‧‧‧Circuit board

110‧‧‧Electrical connector

112‧‧‧Corresponding terminal

114a‧‧‧First terminal slot

114b‧‧‧Second terminal slot

114c‧‧‧ third terminal slot

116c‧‧‧ Third Welding Department

117‧‧‧Bending contact

120c‧‧‧ Third arm

126c‧‧‧ third free end

AD‧‧‧Arranged direction

DP‧‧‧ arrangement interval

ID‧‧‧plug direction

Claims (22)

A high-frequency electrical connector includes: an insulating housing, respectively forming a plurality of first terminal slots and a plurality of second terminal slots arranged in the insulating housing in a direction; a plurality of first-type conductive terminals, Each of the first type of conductive terminals includes: a first soldering portion extending to the outside of the insulating body; the first abutting portion, Connecting the first soldering portion for abutting against a sidewall of the insulating housing to fix the first type of conductive terminal in the first terminal slot corresponding to the insulating housing; the first spring arm portion, Extending a predetermined distance from the first abutting portion toward a plugging direction of the electrical connector; and the first contact portion is connected to the first elastic arm portion at an angle and forms a first freedom at the end An end portion, the first free end portion forms a first width along the alignment direction, and the first contact portion forms a first thickness along a direction perpendicular to the arrangement direction and the insertion direction, wherein the first thickness Greater than the first width; and a plurality of second type conductive Separately disposed in the second terminal slots of the insulative housing; wherein the first free ends of the first type of conductive terminals are electrically connected to corresponding terminals of the pair of electrical connectors for transmission In the case of a high frequency signal, the amount of signal attenuation when the high frequency electrical connector transmits the high frequency signal is reduced. The high frequency electrical connector as described in claim 1 is a non-metal shielded A serial high-connection interface (SATA) type electrical connector, a serial small computer interface (SAS-3) type electrical connector, and any combination thereof. The high frequency electrical connector according to claim 1, wherein the differential resistance values of the first type of conductive terminals are less than or equal to a reference differential impedance value specified by a standard specification of SAS-3 or higher to reduce The amount of attenuation of the signal of the high frequency signal. The high frequency electrical connector of claim 1, wherein a first edge distance is formed between two adjacent sides of the first type of conductive terminals, and each of the two adjacent ones A second edge distance is formed between the sides of the type of conductive terminals, wherein the second edge distance is greater than the first edge distance. The high frequency electrical connector of claim 1, wherein each of the second type of conductive terminals comprises: a second soldering portion for extending outside the insulating body; and a second abutting portion The second soldering portion extends to abut the sidewall of the slot of the second type terminal to fix the second type of conductive terminal in the corresponding terminal slot of the insulating housing; the second spring arm portion The second abutting portion extends a predetermined distance toward a plugging direction of the electrical connector; and the second connecting portion is connected to the second elastic arm portion at an angle and forms a second free end portion at a time. The second free end portion forms a second width along the alignment direction, and the second contact portion forms a second thickness along a direction perpendicular to the arrangement direction and the insertion direction, wherein the second thickness is greater than the second thickness Two widths. The high frequency electrical connector of claim 1 or 5, wherein the first type of conductive terminals and the second type of conductive terminals are blanking terminal structures. The high frequency electrical connector of claim 6, wherein the second free end of the second type of conductive terminals electrically contacts the corresponding terminal of the docking electrical connector to transmit a high frequency signal. The differential resistance values of the second type of conductive terminals are less than or equal to a reference differential impedance value specified by a SATA standard specification. The high frequency electrical connector of claim 3, wherein the reference differential impedance value is between 85 ohms and 115 ohms. The high-frequency electrical connector of claim 1, wherein the first-type conductive terminals comprise: a plurality of first-type conductive terminals; a plurality of second-type conductive terminals, each of the first-type conductive terminals a transverse cross section of the first elastic arm portion of the terminal and a transverse cross section of the first elastic arm portion of each of the second type of conductive terminals are formed along the alignment direction in the first terminal slots of the insulating housing The first type of conductive terminals and the first free ends of the second type of conductive terminals form a collinear or coplanar arrangement. The high frequency electrical connector of claim 9, wherein the first elastic arm portion of each of the two first type of conductive terminals and the first elastic arm of the second type of conductive terminal The overlapping area between the portions is smaller than the surface area of the first elastic arm portion of the two first-type conductive terminals and the first elastic arm portion of the second type of conductive terminals. The high frequency electrical connector of claim 9, wherein each of the first classes The center line of the transverse cross section of the first elastic arm portion of the conductive terminal forms an offset distance from the center line of the transverse cross section of the first elastic arm portion of each of the second type of conductive terminals. The high frequency electrical connector according to claim 1, further comprising a plurality of third type conductive terminals respectively embedded in the plurality of third terminal slots of the insulating housing, each of the third type The conductive terminal has a third soldering portion, a third elastic arm portion, a bent contact portion and a third free end portion, and a length from the third solder portion to the third free end portion is greater than A type of conductive terminal has a length from the first solder portion to the first free end portion. A high-frequency electrical connector includes: an insulating housing, respectively forming a plurality of first terminal slots and a plurality of second terminal slots arranged in the insulating housing in a direction; a plurality of first-type conductive terminals, Each of the first type of conductive terminals further includes a first elastic arm portion and a first contact portion, and the first contact portion is at an angle. Connecting to the first elastic arm portion and forming a first free end portion at a time, each of the first type of conductive terminals further includes: a plurality of first type of conductive terminals; and a plurality of second type of conductive terminals, The structure is different from the plurality of first type of conductive terminals, the transverse cross section of the first elastic arm portion of each of the first type of conductive terminals and the lateral direction of the first elastic arm portion of each of the second type of conductive terminals The first type of conductive terminals and the first free ends of the second type of conductive terminals are formed in a staggered manner in the arrangement direction of the first terminal slots of the insulative housing. And forming a plurality of second-type conductive terminals respectively embedded in the second terminal slots of the insulating housing. The high frequency electrical connector according to claim 13 is a non-metal shielded SATA type electrical connector, a SAS-3 type electrical connector, and any combination thereof. The high frequency electrical connector of claim 13, wherein a first edge distance is formed between two adjacent sides of the first type of conductive terminals, and each of the two adjacent ones A second edge distance is formed between the sides of the type of conductive terminals, wherein the second edge distance is greater than the first edge distance. The high frequency electrical connector of claim 13, wherein the first type of conductive terminals and the second type of conductive terminals are blanking terminal structures. The high frequency electrical connector of claim 16, wherein each of the second type of conductive terminals further includes a second elastic arm portion and a second contact portion, the second contact portion being connected at an angle A second free end portion is formed on the second elastic arm portion at a time. The high frequency electrical connector of claim 17, wherein the second free end of the second type of conductive terminals electrically contacts the corresponding terminal of the docking electrical connector to transmit a high frequency signal. The differential resistance values of the second type of conductive terminals are less than or equal to a reference differential impedance value specified by a SATA standard specification. The high frequency electrical connector of claim 18, wherein the reference differential impedance value is between 85 ohms and 115 ohms. The high frequency electrical connector of claim 13, wherein each two are interleaved The overlapping area of the first elastic arm portion of the first type of conductive terminal and the first elastic arm portion of the second type of conductive terminal are smaller than the two adjacent first conductive terminals of the first type a surface area of the first elastic arm portion and the first elastic arm portion of the second type of conductive terminal. The high frequency electrical connector of claim 13, wherein a center line of a transverse cross section of the first elastic arm portion of each of the first type of conductive terminals and the second conductive terminal of each of the second type of conductive terminals An offset distance is formed between the centerlines of the transverse sections of the first spring arms. The high frequency electrical connector according to claim 13 further comprising a plurality of third type conductive terminals respectively embedded in the plurality of third terminal slots of the insulating housing, each of the third type The conductive terminal has a third soldering portion, a third elastic arm portion, a bent contact portion and a third free end portion, and a length from the third solder portion to the third free end portion is greater than A type of conductive terminal has a length from the first solder portion to the first free end portion.